Ngokwemibiko yabezindaba yangaphandle, u-Tesla usanda kufaka isicelo selungelo lobunikazi elisha lokuhlukanisa amaseli ebhethri angasebenzi ukuze awavimbele ukuthi angathinti kabi amaseli ebhethri asebenzayo, ngaleyo ndlela enze ngcono ukuphepha kwebhethri.

Isizinda sokuthuthukiswa kwe-Tesla yaleli lungelo lobunikazi ukuthi ngenxa yokuthi amaseli ebhethri azokhiqiza ukushisa ngesikhathi senqubo yokushaja futhi lapho ekhulula amandla, u-Tesla wathola ukuthi amaseli ebhethri angalungile azokhiqiza ukushisa, okuzothinta imisebenzi yamaseli ebhethri azungezile. Ibangela ukwehluleka okuqhubekayo kwebhethri. Ngakho-ke, isungule ilungelo lobunikazi.

Ilungelo lobunikazi le-Tesla lichaza isistimu eyinkimbinkimbi eyenza isendlalelo sokuxhumanisa (i-inter-connectivity layer) eqapha futhi elungise izinga lokushisa nokucindezela kuphakethe lebhethri ngokuhlukanisa izingxenye ezinephutha.

I-Tesla Model 3 ifakwe isizukulwane sakamuva samabhethri, amaseli ebhethri angama-21700. U-Tesla ufakazele ukuthi iseli yebhethri inomthamo omkhulu wamandla kunanoma iyiphi iseli yebhethri yemoto kagesi ngoba inciphisa kakhulu okuqukethwe kwe-cobalt, ikhulise ngamandla okuqukethwe kwe-nickel, futhi uhlelo lwebhethri lugcina ukuzinza okuphelele kokushisa. U-Tesla uphinde waveza ukuthi ukwakheka kwamakhemikhali e-nickel-cobalt-aluminium positive electrode yeseli entsha yebhethri ye-Tesla iphansi kunokuqukethwe kwebhethri yesizukulwane esilandelayo somncintiswano.

Amalungelo obunikazi amasha kaTesla aphinde akhombise ukuthi naphezu kobuholi benkampani kwezobuchwepheshe bebhethri, isaqhuba ukuqanjwa kabusha.

Uyini umlingo we-21700?

Umehluko onembile kakhulu phakathi kwamabhethri angu-21700 no-18650 ubukhulu obukhulu.

Ngenxa yomkhawulo wokusebenza kwebhethri, ukwandisa ukuminyana kwamandla ngokungeza ivolumu entsha sekuyinto ecatshangelwayo ebalulekile enkampanini. izwe lami liphakamisa ngokucacile ukuthi ngo-2020, ukuminyana kwamandla kwamandla amaseli ebhethri e-lithium-ion kuzodlula i-300Wh/kg, futhi ukuminyana kwamandla wezinhlelo zebhethri ze-lithium-ion kuzofinyelela ku-260Wh/kg; ngo-2025, ukuminyana kwamandla kwamandla ebhethri ye-lithium-ion kuzofinyelela ku-350Wh/kg. Izidingo eziqhubekayo zokuminyana kwamandla zamandla amabhethri e-lithium-ion nakanjani zizoqhubeka nokukhuthaza ukuguqulwa kwamamodeli ebhethri le-lithium-ion.

Ngokolwazi oludalulwe nguTesla ekuqaleni kwalo nyaka, ngaphansi kwezimo zamanje, ukuminyana kwamandla esistimu yayo yebhethri engu-21700 cishe ku-300Wh/kg, okucishe kube ngama-20% aphezulu kune-250Wh/kg yohlelo lwayo lwebhethri lokuqala lwe-18650. Ukwanda komthamo webhethri kusho ukuthi inani lamaseli adingekayo ukuze amandla afanayo anciphe cishe ngo-1/3, okunciphisa ubunzima bokuphathwa kwesistimu futhi kube lula inani lezesekeli ezifana nezakhiwo zensimbi, nakuba isisindo nezindleko zeyunithi eyodwa. cell ziye zanda , Kodwa isisindo kanye nezindleko zesistimu yebhethri PACK kuncishisiwe.

Ukusungulwa kwalobu buchwepheshe obusha bokuhlukanisa kuvumela ibhethri le-cylindrical engu-21700 elinamandla aphezulu ukuthi ligcinwe kahle ngokuzinza kokushisa.

Ukuphawula: Mayelana namabhethri angamacylindrical, izinkampani zamabhethri aseShayina zisenokuningi okufanele zikufunde kuPanasonic yaseJapan. Njengamanje, i-BAK, i-Yiwei Lithium Energy, i-Smart Energy kanye ne-Suzhou Lishen zonke zikhiphe imikhiqizo yebhethri engu-21700. Ukuguqulwa komugqa wokukhiqiza ikakhulukazi kuhilela ukusika, ukusonga, ukuhlanganisa, ukwakha kanye nezinye izixhumanisi zezigaba ezimaphakathi nezakamuva, futhi izindleko zokulungiswa kwesikhunta kumugqa we-semi-automatic ziphansi kakhulu. Kulula kakhulu kubakhiqizi bebhethri ukuthi bashintshe ukusuka ku-18650 ejwayelekile ukuya ku-21700, futhi ngeke batshale izindleko eziphezulu kakhulu zokuguqulwa kobuchwepheshe kanye nokutshalwa kwezimali kwemishini emisha. Kodwa-ke, izinkampani zezimoto zezwe lami zisalele emuva kakhulu kwe-Tesla mayelana nobuchwepheshe bokuphatha amabhethri, futhi miningi kakhulu imisebenzi yasekhaya okufanele yenziwe.